I've read the ARB_sparse_texture spec and I noticed that the AMD_sparse_texture spec has functions to fetch from a sparse texture and return information about whether any texture data is present, is...

I posted a response to this thread yesterday, is it showing up on your computer? This feature is not Direct3D 10 only, it has been in OpenGL in every version from 1.0 to 4.1, it just has a different...

The ARB_texture_query_lod extension spec talks about a function textureQueryLOD, and the GLSL 4.00 spec talks about a similar function called textureQueryLod.(note the difference in CapiTALizatIOn)....